Rueil Malmaison, France

Gerard Paul Hotier

This inventor holds 52 USPTO granted patents, primarily in Simulated Moving Bed (CPC class 5858). Top assignees: Institut Francais Du Pe'trole, IFP Energies Nouvelles, Axens. Active years: 1985-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Gerard Paul Hotier. Retrieved from https://idiyas.com/inventor/gerard-paul-hotier

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 78.8

Average Co-Inventor Count = 2.7

ph-index = 13

Forward Citations = 521(Granted Patents)

Forward Citations (Not Self Cited) = 433(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Vernaison, FR (1999)
  • Rueil Malmaiso, FR (1999)
  • Mailmaison, FR (1999 - 2000)
  • Chaponost, FR (2000)
  • Rueil Malmaisob, FR (2000)
  • Rueil Malmaison Cedex, FR (2011)
  • Rueil Maimaison, FR (2012)
  • Rueil-Malmaison, FR (1985 - 2022)

Company Filing History:


Years Active: 1985-2022

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Areas of Expertise:
Paraxylene Production
Separation Method
Chromatographic Separation
Fluid Flow Regulation
Purity Improvement
Xylene Separation
Bypass Fluid Flow
Adsorption Process
Rinsing Apparatus
Multi-Stage Column
High Purity Meta-Xylene
Flexible Separation Process
52 patents (USPTO):Explore Patents

Title: The Innovations of Gerard Paul Hotier

Introduction

Gerard Paul Hotier, based in Rueil Malmaison, France, is a prolific inventor with an impressive portfolio of 52 patents to his name. His contributions to the field of chemical engineering and processing technologies have enabled advancements in the production of paraxylene, a critical precursor in the manufacturing of various plastics and fibers.

Latest Patents

Among his latest innovations are two notable patents:

1. **Method for Producing Paraxylene Using a Simulated Moving-Bed Step** - This invention outlines a process that effectively obtains para-xylene from a complex feedstock containing xylenes, ethylbenzene, and C9+ hydrocarbons through efficient separation methods.

2. **Step of Fractionating Two Fractions in a Two-Section Column** - This patent introduces a simulated moving bed (SMB) separation process that optimizes fluid flow while minimizing the number of beds required. This process is defined by its innovative approach to managing the flow of streams both upstream and downstream within the separation zones.

Career Highlights

Throughout his distinguished career, Gerard Hotier has worked with esteemed organizations such as the Institut Français du Pétrole and IFP Energies Nouvelles. His expertise in chemical processes has driven breakthroughs in refining technologies and has significantly impacted the energy sector.

Collaborations

Gerard has collaborated with several notable professionals in his field, among them Philibert Leflaive and Damien Leinekugel Le Cocq. These collaborations have further strengthened his innovative capabilities and contributed to the successful development of his patented technologies.

Conclusion

Gerard Paul Hotier’s unwavering commitment to innovation in chemical engineering is evidenced by his substantial collection of patents and collaborative efforts. His work continues to influence the industry, paving the way for more efficient methods of producing essential materials like paraxylene.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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